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IEEE Conference on Advanced Video and Signal Based Surveillance (AVSS)

作者： Y.-O. Kim J. Paik Jingu Heo A. Koschan B. Abidi M. Abidi Korea Electronics and Technology Institute Puchon Gyeonggi South Korea Image Processing Laboratory Department of Image Engineering Graduate School of Advanced Imaging Science Multimedia and Film Chung-Ang University Seoul South Korea Imaging Robotics and Intelligent Systems Laboratory Department of Electrical and Computer Engineering University of Tennessee Knoxville USA

We present a combined real-time face region tracking and highly accurate face recognition technique for an intelligent surveillance system. High-resolution face images are very important to achieving accurate identification of a human face. Conventional surveillance or security systems, however, usually provide poor image quality because they use only fixed cameras to record scenes passively. We have implemented a real-time surveillance system that tracks a moving face using four pan-tilt-zoom (PTZ) cameras. While tracking, the region-of-interest (ROI) can be obtained by using a low-pass filter and background subtraction with the PTZ. Color information in the ROI is updated to extract features for optimal tracking and zooming. FaceIt/sup /spl reg//, which is one of the most popular face recognition software packages, is evaluated and then used to recognize the faces from the video signal. Experimentation with real human faces showed highly acceptable results in the sense of both accuracy and computational efficiency.

关键词： Face recognition Surveillance Real time systems Humans Cameras intelligent systems Security Image quality Layout Low pass filters

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Simulation of cardiovascular diseases using electronic circuits

Simulation of cardiovascular diseases using electronic circu...

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computers in Cardiology (CinC)

作者： D.G. Tsalikakis D.I. Fotiadis D. Sideris Unit of Medical Technology and Intelligent Information Systems Department of Computer Science University of Ioannina (UoI) Ioannina Greece Biomedical Research Institute-FORTH Ioannina Greece Division of Cardiology Medical School University of Ioannina (UoI) Ioannina Greece

We have developed an electronic circuit to simulate the behavior of the cardiovascular system under normal or pathological conditions. The current, voltage, charge, resistance and capacitance of the circuit correspond to flow, blood pressure, volume, resistance and capacitance of the simulated cardiovascular system, respectively. We have implemented a circuit with two ventricles separated from the systemic and the pulmonary circulation to simulate normal conditions. Vital parameters of the cardiovascular system such as aortic pressure, cardiac output, end-diastolic or systolic volume of right or left ventricle, left and right ventricular pressure, blood volume, pulmonary artery pressure and stroke volume can be obtained. Qualitative and quantitative agreement with the Starling preparation has been achieved for a 120 sec simulation time. We have also simulated pathological situations such as left ventricular failure, mitral stenosis, aortic valvular stenosis, hypertension, pulmonic valve stenosis adjusting the parameters of the circuit components.

关键词： Circuit simulation Cardiovascular diseases Electronic circuits Cardiovascular system Pathology Capacitance Voltage Blood pressure Arteries Hypertension

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GA Optimized Sliding Mode Control of a Mobile Robot

GA Optimized Sliding Mode Control of a Mobile Robot

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2003年中国智能自动化会议

作者： Simon X．Yang Peter X．Liu Advanced Robotics and Intelligent Systems(ARIS)Lab School of Engineering University of Guelph Guelph ON N1G 2W1 Canada Department of Systems and Computer Engineering Carleton University Ottawa Canada K1S 5B6 School of Computer Science University of Windsor Windsor ON N9B 3P4 Canada

Due to the nonholonomic constraint and restricted mobility, the design of stabilizing control laws for a mobile is a challenging problem. Sliding mode control is a robust design methodology based on a sliding surface and a Lyapunov's stability theorem, where the system uncertainties and external disturbances can be handled under the invariance characteristics of system's sliding condition with guaranteed system stability. In this paper, a genetic algorithm is used to optimize the parameters in sliding mode controller for a nonholonomic mobile robot. The effectiveness of the proposed GA based sliding model controller is demonstrated by simulation studies.

关键词： Mobile GA Optimized Sliding Mode Control of a Mobile Robot

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Performance characteristics of inter-vehicle ad hoc networks

Performance characteristics of inter-vehicle ad hoc networks

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International Conference on intelligent Transportation

作者： J. Blum A. Eskandarian L.J. Hoffman Center for Intelligent Systems Rerearch George Washington University Washington D.C. DC USA Computer Science Department and the Cyber Security Policy and Research Institute George Washington University Washington D.C. DC USA

Inter-vehicle communication (IVC) networks are a sub-class of mobile ad hoc networks (MANETs). They have no fixed infrastructure and instead rely on the mobile nodes themselves to provide network functionality. However, due to mobility constraints, driver behavior, and high mobility, IVC networks exhibit characteristics that are dramatically different than those of many generic MANETs studied so far. This paper elicits these differences through simulations and mathematical models, and then investigates the impact of the differences on the IVC communication architecture, including important security implications.

关键词： Ad hoc networks Mobile ad hoc networks Mobile communication Interference Communication system security Road transportation Open systems Mathematical model Collision avoidance Hazards

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Relational database linkage of scientific applications and their data files

Relational database linkage of scientific applications and t...

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IEEE Workshop on Soft Computing in Industrial Applications (SMCia)

作者： I. Rudowskyi O. Kulyba M. Kunin D. Ogarodnikov T. Raphan Dept. of Comput. & Inf. Sci. City Univ. of New York Brooklyn NY USA Brooklyn College City University of New York Brooklyn NY USA Department of Computer and Information Science Institute of Neural & Intelligent Systems New York Department of Neurology Mt Sinai School of Medicine New York New York USA

Research in computational neuroscience has been following a model-based approach where data is comprised of digitized streams of sampled analog data, images and voice. The data are generally contained in files and specialized programs are used to analyze the data. In this study we developed a prototype system for indexing and retrieving information for use by an application that analyzes data. The data in the files consist of channels derived from analog and event driven sources. It is also linked to video images associated with the data acquisition. In this research, we developed an indexing capability that threads into the data acquisition and analysis programs to give the system a broad data base capability. We designed tables and relations within the database for indexing the files and information contained within the file. The system has the potential of giving us retrieval capabilities that include analog, event, and video data types.

关键词： Relational databases Couplings Data analysis Indexing Information retrieval Data acquisition Analog computers Neuroscience Streaming media Prototypes

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Preface

Lecture Notes in Computer Science (including subseries Lectu...

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Lecture Notes in computer science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2003年 2801卷 v-vi页

作者： Banzhaf, Wolfgang Christaller, Thomas Dittrich, Peter Kim, Jan T. Ziegler, Jens University of Dortmund Department of Computer Science 11 Joseph-von-Fraunhofer-Str. 20 Dortmund Germany Fraunhofer Institute for Autonomous Intelligent Systems Schloss Birlinghoven Sankt Augustin Germany University of Jena Institute of Computer Science Bio Analysis Group Jena Germany University of Lübeck Institute of Neuro-and Bioinformatics Seelandstr. 1a Lübeck Germany

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Adapting question answering techniques to the Web

Adapting question answering techniques to the Web

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Language Engineering Conference, LEC 2002

作者： Parikh, J. Narasimha Murty, M. Intelligent Systems Lab. Computer Science and Automation Department Indian Institute of Science Bangalore India

ISBN: (纸本)0769518850

The Web has emerged as a huge information repository that can be used for various knowledge based applications, an important one being question answering (QA). The paper discusses the issues involved in using Web as a knowledge base for question answering involving simple factual questions. It also proposes some simple but effective methods to adapt traditional QA methods to deal with efficient these issues and lead to an accurate and efficient question answering system. The paper discusses the architecture and design of our system. The empirical results obtained on the current system are encouraging. © 2002 IEEE.

关键词： Knowledge based systems

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Childcares: An intelligent collaborative environment for out-of-hospital child healthcare

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Health Informatics Journal 2002年第4期8卷 181-190页

作者： Ganiatsas, G. Starida, K. Fotiadis, D.I. Likas, A. Unit of Medical Technology Intelligent Information Systems Deptartment of Computer Science University of Ioannina 45110 Ioannina Greece Department of Computer Science University of Ioannina Biomedical Research Institute-FORTH 45110 Ioannina Greece

This paper provides an overview of the concept, the functionalities and the architecture of the CHILDCARE platform. Our system aims at supporting the out-of-hospital continuous healthcare management of children and promoting its quality. All the involved actors in this domain are integrated across the system. Our focus is the utilization of the latest technology accomplishments towards the incorporation of teleconference sessions, collaborative spaces and intelligent features over a common secure platform. This combination allows: •remote communication between health experts and the child's family• setup, execution and monitoring of health management plans• efficient collaboration between the responsible doctor and healthcare professionals• access from multiple devices from any place, at any time• role-based management of the involved actors with respect to their actual involvement in the healthcare management, ensuring confidentiality and security at all levels. The main components of CHILDCARE include • a mechanism for interfacing legacy systems• the virtual workspace for delivering communication functionalities• the intelligent features for accessing and utilizing information from the personal health records and the system repositories so as to implement added-value services• interfacing modules for ensuring appropriate interaction with respect to the role and interests of each user group. © 2002, Sage Publications. All rights reserved.

关键词： collaborative spaces homecare intelligent systems Telemedicine

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Integrating ground and aerial views for urban site modeling

Integrating ground and aerial views for urban site modeling

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16th International Conference on Pattern Recognition, ICPR 2002

作者： Lee, Sung Chun Jung, Soon Ki Nevatia, RaM. Institute for Robotics and Intelligent Systems University of Southern California Los AngelesCA90089 United States Department of Computer Engineering Kyungpook National University Daegu Korea Republic of

ISBN: (纸本)0769516963

3D models of urban sites with good geometry and facade textures are needed for many planning and visualization applications. Approximate wireframe can be derived from aerial images but detailed textures must be obtained from ground level images. Integrating such views with the 3D models is difficult as only small parts of buildings may be visible in a single view. We describe a method that uses two or three vanishing points, not necessarily from orthogonal sets of parallel lines, and a small number of point correspondences to estimate the intrinsic and extrinsic parameters of the ground level cameras. Experimental results from some buildings are presented. © 2002 IEEE.

关键词： Three dimensional computer graphics

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Integrating ground and aerial views for urban site modeling

Integrating ground and aerial views for urban site modeling

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作者： Lee, Sung Chun Jung, Soon Ki Nevatia, Ram Institute for Robotics and Intelligent Systems University of Southern California Los Angeles CA 90089 United States Department of Computer Engineering Kyungpook National University Daegu Korea Republic of

关键词： Urban planning

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